EP 1704562 A4 20090121 - HOLOGRAPHIC DATA STORAGE MEDIA WITH STRUCTURE SURFACES
Title (en)
HOLOGRAPHIC DATA STORAGE MEDIA WITH STRUCTURE SURFACES
Title (de)
HOLOGRAPHISCHE DATENSPEICHERMEDIEN MIT STRUKTUROBERFLÄCHEN
Title (fr)
SUPPORT DE STOCKAGE DE DONNEES HOLOGRAPHIQUE COMPRENANT DES SURFACES STRUCTUREES
Publication
Application
Priority
- US 2004038020 W 20041115
- US 52017603 P 20031114
Abstract (en)
[origin: US2005105150A1] Holographic media for storing and reading holographic data is provided having one or more external or internal surfaces having structures for at least one of minimizing reflections from illumination incident the surface, or enhancing adhesion between surfaces within the media. Structures for minimizing reflections represent a grating pattern of subwavelength structures providing low reflectivity at the operating characteristics of holographic optical systems to use the media, such as spectral bandwidth, angular bandwidth, and polarization of illumination incident the media. Adhesion promotion may be provided by structures along an interior surface of the media, such as along an interfacing surface between photosensitive material of the media and a substrate material adjoining the photosensitive material. Such adhesion promotion may be provided by such structured surface with or without providing low reflectivity at the operating characteristics of holographic optical systems to use the media. The structures may be same or similar to one-, two-, or three-dimensional sinusoidal, triangular, staircase, moth eye, pyramidal, lamellar, or binary structures, or combinations thereof, and may be periodic or random.
IPC 8 full level
G11B 7/00 (2006.01); G02B 1/11 (2006.01); G11B 7/0065 (2006.01); G11B 7/24 (2013.01)
CPC (source: EP KR US)
G02B 1/11 (2013.01 - EP US); G11B 7/0065 (2013.01 - EP KR US); G11B 7/24 (2013.01 - EP US)
Citation (search report)
- [DYA] US 2003151814 A1 20030814 - ASPEN FRANK E [US]
- [Y] US 6359735 B1 20020319 - GOMBERT ANDREAS [DE], et al
- [A] GOMBERT A ET AL: "Subwavelength-structured antireflective surfaces on glass", 30 August 1999, THIN SOLID FILMS, ELSEVIER-SEQUOIA S.A. LAUSANNE, CH, PAGE(S) 73 - 78, ISSN: 0040-6090, XP004183069
- [A] KANAMORI Y ET AL: "BROADBAND ANTIREFLECTION GRATINGS FABRICATED UPON SILICON SUBSTRATES", 15 October 1999, OPTICS LETTERS, OSA, OPTICAL SOCIETY OF AMERICA, WASHINGTON, DC, US, PAGE(S) 1422 - 1424, ISSN: 0146-9592, XP000873713
- See references of WO 2005050627A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2005105150 A1 20050519; US 7164514 B2 20070116; CA 2545927 A1 20050602; EP 1704562 A2 20060927; EP 1704562 A4 20090121; JP 2007515667 A 20070614; KR 20070008521 A 20070117; WO 2005050627 A2 20050602; WO 2005050627 A3 20060817
DOCDB simple family (application)
US 98895104 A 20041115; CA 2545927 A 20041115; EP 04810961 A 20041115; JP 2006539954 A 20041115; KR 20067009439 A 20060515; US 2004038020 W 20041115